150-160 days? Where'd you get that number? Out your a$$ like most info?
It's more like 80-90 days between 7.3 launch and raid launch(August 30th - November not sure if 21st or 28th), and yet again OP was referring to the length of the final raid tier. Meaning the time between a raid and the next expansion. Not a lot of players complained about early-mid tiers in legion being too long (like they did previously about them being too short, look at most Highmaul/BRF threads) so pacing is more of an improvement.